Phone 7 Bing map control - Add a pushpin when tap - windows-phone-7

Question

I am using the latest Phone 7 RTM tools ( downloaded it today, October 7 2010).
I am trying to do a simple thing here:
when the user taps once on the map control, i want to put a pushpin there.
also, i want to keep the regular built-in behavior of the map control ( tap twice to zoom).
(If it's not possible to keep both behaviors , then maybe a long press on the map to put pushpin).
When trying figuring this out, i came across this documentation of the changes made to the control map for Phone7:
http://msdn.microsoft.com/en-us/library/ff955762.aspx
Then i saw the new class MapInputEventArgs, which has a ViewportPoint member.
When looking at code examples on the regular SilverLight map control i saw something like this:
private void OnMouseClick(object sender, MapMouseEventArgs e)
{
Point clickLocation = e.ViewportPoint;
Location location = x_Map.ViewportPointToLocation(clickLocation);
Pushpin pushpin = new Pushpin();
m_PushpinLayer.AddChild(pushpin, new Location(latitude, longitude));
}
But in Phone7 case, I can't find the appropriate event handler, and I could not find who uses MapInputEventArgs in the map control.
Searching it on google gets me only 1 result !!
So , where is the appropriate event for "Tap once", and how can i get a ViewportPoint after this event has been fired ?
Thanks in advance.

Answer 1

Just figured this out if you are still having problems.
The MouseLeftButtonUp and MouseLeftButtonDown Events have a GetPosition Method that will return the point your looking for
private void MapMain_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Point p = e.GetPosition(this.MapMain);
GeoCoordinate geo = new GeoCoordinate();
geo = MapMain.ViewportPointToLocation(p);
MapMain.ZoomLevel = 17;
MapMain.Center = geo;
//---create a new pushpin---
Pushpin pin = new Pushpin();
//---set the location for the pushpin---
pin.Location = geo;
//---add the pushpin to the map---
MapMain.Children.Add(pin);
}

Answer 2

Unless I'm reading your question wrong, this seems to be exactly what you're looking for:
Silverlight - Add Pushpin to Bing Maps via C#

Answer 3

Okay, it's not pretty, but I have the same problem and I came up with a workaround of sorts that kicks in when you release your fingers from the screen. I instantiate a boolean:
bool noPin = false;
I then use this to determine whether zoom or pan is being done by the user (these fire between the MouseLeftButtonDown and MouseLeftButtonUp events). On the Up event, I then check whether the user was zooming or panning and, if not, place my pushpin.
private void mHome_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
noPin = false;
}
private void mHome_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (!noPin)
PlacePushPin();
}
private void mHome_MapPan(object sender, MapDragEventArgs e)
{
tbTemp.Text += "pan";
}
private void mHome_MapZoom(object sender, MapZoomEventArgs e)
{
tbTemp.Text += "zoom";
}
It's not beautiful but, well, it was the best I could manage.